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The radioesophagogram (REG) is a new tracer technique introduced for the functional study of the esophagus. Following the swallow of a radioactive drink, the transit of the bolus along the course of the esophagus is monitored by means of the gamma camera.
The data are continuously recorded for imaging and processing.
Twelve normal volunteers and 20 patients with varying degrees of esophageal obstruction were studied.
The normal REG suggests that a drink, such as water, requires 3-5 seconds to pass through the normal esophagus, and 5 more seconds to enter the stomach.
Mechanical and functional obstructions in patients are described.
The physiologic and clinical values of the technique are discussed.
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G. Mariani, G. Boni, M. Barreca, M. Bellini, B. Fattori, A. AlSharif, M. Grosso, C. Stasi, F. Costa, M. Anselmino, et al. Radionuclide Gastroesophageal Motor Studies J. Nucl. Med., June 1, 2004; 45(6): 1004 - 1028. [Abstract] [Full Text] [PDF] |
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